高等学校化学学报

高等学校化学学报 ›› 2011, Vol. 32 ›› Issue (2): 350.

• 研究论文 • 上一篇    下一篇

钌钛复合氧化物载Pd催化剂的制备及对甲酸氧化的电催化性能

孔祥峰1,沈娟章2,陆天虹2,芦永红1,王伟1,范新庄1,徐海波1   

  1. 1. 中国海洋大学化学化工学院, 海洋化学理论与工程技术教育部重点实验室, 青岛 266100;
    2. 南京师范大学化学与环境科学学院, 南京 210097
  • 收稿日期:2010-06-17 修回日期:2010-10-29 出版日期:2010-02-10 发布日期:2011-02-23
  • 通讯作者: 徐海波 E-mail:xuwangri@163.com
  • 基金资助:

     国家“八六三”计划项目(批准号: 2007AA05Z143,  2007AA05Z159)\,   国家自然科学基金(批准号: 20873065, 21073094)和山东省博士基金(批准号: BS2010NJ018)资助.

Preparation of RuxTi1-xO2 and Its Electrocatalytic Performance in Oxidation of Formic Acid

KONG Xiang-Feng1, SHEN Juan-Zhang2, LU Tian-Hong2, LU Yong-Hong1, WANG Wei1, FAN Xin-Zhuang1, XU Hai-Bo1*   

  1. 1. Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China;
    2. College of Chemistry and Environmental Science, Nanjing Normal University, Nanjing 210097, China
  • Received:2010-06-17 Revised:2010-10-29 Online:2010-02-10 Published:2011-02-23
  • Contact: XU Hai-Bo E-mail:xuwangri@163.com
  • Supported by:

     国家“八六三”计划项目(批准号: 2007AA05Z143,  2007AA05Z159)\,   国家自然科学基金(批准号: 20873065, 21073094)和山东省博士基金(批准号: BS2010NJ018)资助.

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被引次数

6

摘要： 用TiN浸渍热分解法制备了不同摩尔比的钌钛复合氧化物（RuxTi1-xO2）纳米粉体，并以此做负载，用微波还原法制备了用作直接甲酸燃料电池（DFAFC）阳极催化剂的钯催化剂（Pd/RuxTi1-xO2, Pd质量分数20%）. X射线衍射（XRD）和透射电镜（TEM）测试表明，Pd纳米颗粒分散在棒状、具有金红石结构的RuxTi1-xO2表面. 用电化学方法测试Pd/RuxTi1-xO2催化剂对甲酸氧化的电催化性能，结果表明：RuxTi1-xO2中Ru含量会影响催化剂对甲酸氧化的电催化活性和稳定性. 当x为0.3时，催化剂对甲酸氧化的电催化活性最高，稳定性也最好.

关键词: 钌钛复合氧化物, 直接甲酸燃料电池, 钯催化剂, 电催化

Abstract: Nano-powder of ruthenium-titanium composite oxides of different molar ratios (RuxTi1-xO2) are synthesised by TiN impregnation-thermal decomposition method, and then 20 wt% Pd are carried on this powder by microwave polyol method to transform into a kind of anode catalysts (Pd/RuxTi1-xO2) of direct formic acid fuel cells (DFAFC). By X-ray diffraction (XRD) and transmission electron microscopy (TEM), it reveals that the Pd nanoparticles are well-distributed on the surface of composite oxides with claviform and rutile structure. The electrocatalytic oxidation by cyclic voltammetry (CV) and chronoamperometric curves show that the content of Ru in catalysts can influence the electrocatalytic activity and stability of the direct oxidation of formic acid. When the x is 0.3, the electrocatalytic activity and stability are the best.

Key words: ruthenium-titanium composite oxide, direct formic acid fuel cells, palladium catalyst, Electrocatalytic

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